/Engine/Source/Editor/BlueprintGraph/Classes/BlueprintBoundNodeSpawner.h
typedef TBaseDelegate_TwoParams< [UEdGraphNode](API\Runtime\Engine\EdGraph\UEdGraphNode) *, const [UBlueprint](API\Runtime\Engine\Engine\UBlueprint) *, [IBlueprintNodeBinder::FBindingSet](API\Editor\BlueprintGraph\IBlueprintNodeBinder\FBindingSet) const & > FFindPreExistingNodeDelegate